[Durable Material]: Our cup lids are made of silicone, which is odorless, high and low-temperature resistant, reusable, durable and not easy to deform or crack, providing a long service life. Our cup lids can withstand extreme temperatures of -40℃~250℃ and can be used in microwave ovens and refrigerators.[Good Sealing]: The silicone cup lid can firmly seal all smooth edges such as cups, mugs and glasses, effectively preventing dust, foreign objects from entering or liquid from flowing out, and keeping the heat and flavor of coffee or tea. Whether you are at work or in a moving vehicle, it can help keep the contents of the cup sealed and leak-proof.[Easy to Use and Clean]: The raised design on the top of the lid is easy to hold. You only need to gently press the center of the lid to form a seal, spoons and stirring sticks can be placed in the middle of the protrusion. In addition, these silicone cup lids are reusable and washable, you can wash them by hand or in a dishwasher.[Application]: The sealed cup lids are suitable for mugs, glass cups, plastic cups, ceramic cups, etc., and can be used in homes, offices, camping, etc., both indoors and outdoors.SpecificationsColor:Dark GrayMaterial: SiliconeSize: 100 x 2.3mm/3.94" x 0.09" (D*T)Package includes:2 x Silicone Cup Lids